package com.example.android.justjava;

import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.TextView;

import java.text.NumberFormat;

/**
 * This app displays an order form to order coffee.
 */
public class MainActivity extends ActionBarActivity {
    int quantity = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }


    public void increment(View view) {

        quantity = quantity + 1;
        display(quantity);
    }

    public void decrement(View view) {
        if (quantity > 0)

        {
            quantity = quantity - 1;
            display(quantity);
        }
    }

    /**
     * This method is called when the order button is clicked.
     */

    public void submitOrder(View view) {
        int price=(quantity * 60);
        String priceMessage = "Total: ₹ "+price;
        priceMessage=priceMessage+"\nThank You!";
        displayMessage(priceMessage);
    }

    /**
     * This method displays the given quantity value on the screen.
     */
    private void display(int number) {
        TextView quantityTextView = (TextView) findViewById(
                R.id.quantity_text_view);
        quantityTextView.setText("" + number);
    }



    /**
     * This method displays the given text on the screen.
     */
    private void displayMessage(String message) {
        TextView priceTextView = (TextView) findViewById(R.id.price_text_view);
        priceTextView.setText(message);
    }
}